20147990768

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{587}}^1\times {\mathrm{19681}}^1$

素因数の和:20385

約数の個数: 40

約数和(自身を含む): 39463984560

約数和(自身を除く): 19315993792

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 587, 872, 1174, 1744, 2348, 4696, 9392, 19681, 39362, 63983, 78724, 127966, 157448, 255932, 314896, 511864, 1023728, 2145229, 4290458, 8580916, 11552747, 17161832, 23105494, 34323664, 46210988, 92421976, 184843952, 1259249423, 2518498846, 5036997692, 10073995384, 20147990768]

約数ペア:

[(1, 20147990768), (2, 10073995384), (4, 5036997692), (8, 2518498846), (16, 1259249423), (109, 184843952), (218, 92421976), (436, 46210988), (587, 34323664), (872, 23105494), (1174, 17161832), (1744, 11552747), (2348, 8580916), (4696, 4290458), (9392, 2145229), (19681, 1023728), (39362, 511864), (63983, 314896), (78724, 255932), (127966, 157448)]